Query Result: A list of all the title-author pairs

<results>
    <result>
         <title>TCP/IP Illustrated</title>
         <author><last>Stevens</last><first>W.</first></author>
    </result>
    <result>
         <title>Advanced Programming in the Unix Environment</title>
         <author><last>Stevens</last><first>W.</first></author>
    </result>
    <result>
         <title>Data on the Web</title>
         <author><last>Abiteboul</last><first>Serge</first></author>
    </result>
    <result>
         <title> Data on the Web</title>
         <author><last>Buneman</last><first>Peter</first></author>
    </result>
    <result>
         <title>Data on the Web</title>
         <author><last>Suciu</last><first>Dan</first></author>
    </result>
</results>
 

Adapted from XML Query Use Cases